TraceContextRecord.IsWarning Özellik

public:
 property bool IsWarning { bool get(); };

public bool IsWarning { get; }

member this.IsWarning : bool

Public ReadOnly Property IsWarning As Boolean

Özellik Değeri

true TraceContextRecord yöntemi çağrısıyla Warn ilişkilendirilmişse; değilse, false.

Örnekler

Aşağıdaki kod örneği, kaydın içerdiği iletinin IsWarningTraceContextRecord bir Warn veya Write yöntem çağrısı tarafından yazılıp yazılmadığını belirlemek için özelliğinin nasıl denetleneceğini gösterir. İzleme kaydı bir uyarı iletisiyse, hata iletisinden farklı bir eylem yapılır.

<%@ Page language="c#" Trace="true" %>
<script runat="server">
void Page_Load(object sender, EventArgs e)
{
    // Register a handler for the TraceFinished event.
    Trace.TraceFinished += new 
        TraceContextEventHandler(this.OnTraceFinished);

    try {
        throw new ArgumentException("Trace Test");
    }
    catch (InvalidOperationException ioe) {    
        // You can write an error trace message using the Write method.
        Trace.Write("Exception Handling", "Exception: Page_Load.", ioe);
    }
    catch (ArgumentException ae) {    
        // You can write a warning trace message using the Warn method.
        Trace.Warn("Exception Handling", "Warning: Page_Load.", ae);
    }
}
 
// A TraceContextEventHandler for the TraceFinished event.
void OnTraceFinished(object sender, TraceContextEventArgs e)
{
    TraceContextRecord r = null;    
    
    // Iterate through the collection of trace records and write 
    // them to the response stream.
    foreach(object o in e.TraceRecords)
    { 
        r = (TraceContextRecord)o;
        if (r.IsWarning) {
            Response.Write(String.Format("warning message: {0} <BR>", r.Message));
        }
        else {
            Response.Write(String.Format("error message: {0} <BR>", r.Message));
        }

    }
}       
</script>

<%@ Page language="VB" Trace="true" %>
<script runat="server">
' The Page_Load method.
Private Sub Page_Load(sender As Object, e As EventArgs)

    ' Register a handler for the TraceFinished event.
    AddHandler Trace.TraceFinished, AddressOf OnTraceFinished

    Try 
    Dim ae As New ArgumentException("Trace Test")
        Throw ae
    
    catch ioe As InvalidOperationException
        ' You can write an error trace message using the Write method.
        Trace.Write("Exception Handling", "Exception: Page_Load.", ioe)
    
    Catch ae As ArgumentException
        ' You can write a warning trace message using the Warn method.
        Trace.Warn("Exception Handling", "Warning: Page_Load.", ae)

    End Try

End Sub ' Page_Load
 
' A TraceContextEventHandler for the TraceFinished event.
Private Sub OnTraceFinished(sender As Object, e As TraceContextEventArgs)

    Dim r As TraceContextRecord
    Dim o As Object
    
    ' Iterate through the collection of trace records and write 
    ' them to the response stream.

    For Each o In e.TraceRecords
        r = CType(o, TraceContextRecord)
    If r.IsWarning Then
            Response.Write(String.Format("warning message: {0} <BR>", r.Message))
        Else
            Response.Write(String.Format("error message: {0} <BR>", r.Message))
        End If
    Next

End Sub	' OnTraceFinished
</script>

Şunlara uygulanır

Ayrıca bkz.

• ASP.NET İzlemeye Genel Bakış